(19)

(11)

EP 2 577 132 A1

(12)

(43) Date of publication: 10.04.2013 Bulletin 2013/15 (21) Application number: 11724870.8 (22) Date of filing: 25.05.2011

(51) International Patent Classification (IPC):  F16K 31/126(2006.01) F16K 24/02(2006.01) (86) International application number: PCT/US2011/037971 (87) International publication number: WO 2011/150106 (01.12.2011 Gazette 2011/48)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR (30) Priority: 28.05.2010 US 349592 P (71) Applicant: Fisher Controls International LLC Marshalltown, IA 50158 (US)	(72) Inventor: WEARS, William, Everett Marshalltown, IA 50158 (US) (74) Representative: Wablat Lange Karthaus  Anwaltssozietät Potsdamer Chaussee 48 14129 Berlin 14129 Berlin (DE)